BEST WAYI have found is to make a mix of Kalkwasser and HOT (not
boiling) warter. Suck a little of it up into a turkey baster and gently
spay it on the Aptasia.or in it's hole (cause they always see you
comming and retract). I had some and it has taken care of the problem.
Of course I tried everything else first shrimps,butterflys,
lemmonjuice............